Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 67
Date published: May 13, 2016
Status: Active

Restoration Ecology

Restoration of ecological systems in wildland areas often involves restoring species to habitats degraded by invasive plant and animal species.  Often, such invasive species exert community level impacts, such as direct competition, but may also alter ecosystem function. For example, invasive plants have been documented to alter fire regimes, soil nutrients and microbes, food webs, and/or...

Date published: May 11, 2016
Status: Active

Status and Trends of Hawaiian Flora and Fauna

Hawai‘i has more endangered species than any other state - over 394 species.  In spite of this fact, there is not a central clearing house for information on the status and trends of these species.  Information is spread over the following areas:

1. USGS maintains some information on Forest Birds.

2. USFWS maintains summary data on listed and proposed plants.

3. The...

Date published: May 11, 2016
Status: Completed

Dynamics of a Koa Looper Moth Outbreak and Response by the Native Forest Community

A massive outbreak of the native koa looper moth (Scotorythra paludicola; Geometridae) defoliated more than a third of the koa (Acacia koa) forest on Hawai‘i Island during 2013–2014. Our objective was to record the dynamics of the koa looper (Scotorythra paludicola) outbreak and evaluate the response to the outbreak by the forest ecosystem generally as well as select native and invasive...

Date published: April 26, 2016
Status: Active

Webinar: Recreational Seascapes: Integrating Human and Mechanical Observations on Hawaiʻi Island

View this webinar to learn how scientists explored how people on the seascape experienced climate and environmental changes in Hawai'i.

Contacts: Noelani Puniwai
Date published: April 17, 2016
Status: Active

Development of an Environmental Assessment and Eradication Plan to Remove Tilapia from Ponds and Wetlands in National Parks on the Island of Hawai’i

Mozambique tilapia, a highly invasive non-native fish of the family Cichlidae, were discovered in a wetland in Kaloko-Honokohau National Historical Park on the Big Island of Hawai'i. As the U.S. National Park Service works to restore the natural communities and functions of wetland ecosystems on the island, the eradication of the tilapia population is considered necessary to fully achieve...

Contacts: Leo Nico, Ph.D.
Date published: April 13, 2016

Understanding Coastal Change

Scientists perform a range of studies that document, assess, and model coastal change, risk, and vulnerability. Studies include historical shoreline change, the geologic structure and history of coastal regions, sediment supply and transport, sea-level rise, and how extreme storm events affect rates and impacts of coastal change.

Date published: April 13, 2016

Geologic Hazards and Catastrophic Events

We study the distribution and hazard potential of coastal and submarine events such as earthquakes and submarine landslides and associated tsunami potential, hurricane induced coastal inundation, extreme storms, sea-level rise and oil and gas spills. We also model development to help evaluate and forecast coastal hazard probability and occurrence.

Date published: April 13, 2016

Ocean Resources for America's Needs

Our scientists conduct research studies focused on geologic mapping, sampling and understanding of mineral and energy resources and studies of the geologic setting and processes to inform renewable energy development offshore.

Date published: April 13, 2016

Coastal and Marine Ecosystem Science

We bring together multidisciplinary expertise focused on developing tools and models to improve understanding of how healthy ecosystems function as well as how they respond to environmental changes and human impacts including ecosystem restoration. Research studies address coral reef, coastal wetland, benthic habitat and groundwater resources.

Date published: March 17, 2016

Volcano Hazards Assessments Help Mitigate Disasters

The Volcano Hazards Program develops long-range volcano hazards assessments. These includes a summary of the specific hazards, their impact areas, and a map showing ground-hazard zones. The assessments are also critical for planning long-term land-use and effective emergency-response measures, especially when a volcano begins to show signs of unrest.

Date published: March 9, 2016

Pacific Island Ecosystems Research Center

We work with others to provide scientific understanding and technologies needed to support and implement sound management and conservation of our Nation's biological resources in Hawaii and other Pacific island locations.

Date published: March 9, 2016

Pacific Islands Water Science Center

This center is one of 48 Water Science Centers in the USGS, and its mission is to collect, analyze and disseminate the impartial hydrologic data and information needed to wisely manage water resources for the people of the United States, the State of Hawaii, and other Pacific Islands.

Filter Total Items: 88
Date published: June 15, 2016

Hawaiʻi Rainfall--current conditions

Continuously recording rainfall sites utilize equipment that automatically record and store the amount of rainfall at specific intervals. Many sites are equipped with telemetry so that information can be electronically transmitted and displayed on the internet in real time.

Date published: June 15, 2016

Hawaiʻi Water Quality--current conditions

Suspended-sediment concentrations are determined from samples collected by an autosampler or collected manually.

Date published: June 15, 2016

Hawaiʻi Groundwater--current conditions

At some sites, groundwater levels in wells are manually measured, using steel or electrical tapes or pressure transducers. Other sites utilize electronic equipment to record and store the water levels at specific intervals. Some sites are equipped with telemetry so that information can be electronically transmitted and displayed in real-time on the internet.

Date published: June 15, 2016

Hawaiʻi Streamflow--current conditions

Continuously recording surface-water stations are stations with equipment that automatically record and store data at specific intervals. Many stations are equipped with telemetry so that information can be electronically transmitted and displayed on the internet in real time.

Date published: April 20, 2016

Structures Data

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations....

Date published: April 19, 2016

The United States Interagency Elevation Inventory (USIEI)

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and...

Date published: April 19, 2016

Elevation Data

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Date published: April 18, 2016

Coastal and Marine Geology Video and Photography Portal

This portal contains U.S. Geological Survey (USGS) video and photography of the seafloor off of coastal California and Massachusetts, and aerial imagery of the coastline along segments of the Gulf of Mexico and mid-Atlantic coasts. These data were collected as part of several USGS Coastal and Marine Geology Program Seafloor Mapping projects and Hurricane and Extreme Storm research.

Date published: April 12, 2016

Orthoimagery Data

Orthoimagery data typically are high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The National Map offers public domain, 1-meter orthoimagery for the conterminous United States with many urban areas and other locations at 2-foot or finer resolution.

Date published: April 12, 2016

The National Map Small-Scale Collection

The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.

Filter Total Items: 297
Thermal map of fissure system and lava flows
June 29, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Friday, June 29

Map showing lower East Rift Zone lava flows and fissures
June 28, 2018

Map as of 2:00 p.m. HST, June 28, 2018

Thermal map of fissure system and lava flows
June 27, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Wednesday, June 27

Map showing lower East Rift Zone lava flows and fissures
June 26, 2018

Map as of 10:00 a.m. HST, June 26, 2018.

Thermal map of fissure system and lava flows
June 26, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Tuesday, June 26

Map showing lower East Rift Zone lava flows and fissures
June 25, 2018

Map as of 2:00 p.m. HST, June 25, 2018

Thermal map of fissure system and lava flows
June 24, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Sunday, June 24

Map showing lower East Rift Zone lava flows and fissures
June 22, 2018

Map as of 2:00 p.m. HST, June 22, 2018

Thermal map of fissure system and lava flows
June 21, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Thursday, June 21.

Map showing lower East Rift Zone lava flows and fissures
June 19, 2018

Map as of 1:00 p.m. HST, June 19, 2018

Thermal map of fissure system and lava flows
June 19, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Tuesday, June 19

Map showing lower East Rift Zone lava flows and fissures
June 18, 2018

Map as of 9:00 a.m. HST, June 18, 2018

Filter Total Items: 111
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Year Published: 2010

Flood-Frequency Estimates for Streams on Kaua`i, O`ahu, Moloka`i, Maui, and Hawai`i, State of Hawai`i

This study provides an updated analysis of the magnitude and frequency of peak stream discharges in Hawai`i. Annual peak-discharge data collected by the U.S. Geological Survey during and before water year 2008 (ending September 30, 2008) at stream-gaging stations were analyzed. The existing generalized-skew value for the State of Hawai`i was...

Oki, Delwyn S.; Rosa, Sarah N.; Yeung, Chiu W.
Flood-Frequency Estimates for Streams on Kaua`i, O`ahu, Moloka`i, Maui, and Hawai`i, State of Hawai`i; 2010; SIR; 2010-5035; Oki, Delwyn S.; Rosa, Sarah N.; Yeung, Chiu W.

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Year Published: 2010

Effects of Surface-Water Diversion on Streamflow, Recharge, Physical Habitat, and Temperature, Na Wai `Eha, Maui, Hawai`i

The perennial flow provided by Waihe‘e River, Waiehu Stream, ‘Īao Stream, and Waikapū Stream, collectively known as Nā Wai ‘Ehā (“The Four Streams”), made it possible for widespread agricultural activities to flourish in the eastern part of West Maui, Hawai‘i. The streams of the Nā...

Oki, Delwyn S.; Wolff, Reuben H.; Perreault, Jeff A.
Effects of Surface-Water Diversion on Streamflow, Recharge, Physical Habitat, and Temperature, Na Wai `Eha, Maui, Hawai`i; 2010; SIR; 2010-5011; Oki, Delwyn S.; Wolff, Reuben H.; Perreault, Jeff A.

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Year Published: 2010

Coral Ba/Ca records of sediment input to the fringing reef of the southshore of Moloka'i, Hawai'i over the last several decades

The fringing reef of southern Moloka’i is perceived to be in decline because of land-based pollution. In the absence of historical records of sediment pollution, ratios of coral Ba/Ca were used to test the hypothesis that sedimentation has increased over time. Baseline Ba/Ca ratios co-vary with the abundance of red, terrigenous sediment visible in...

Prouty, N.G.; Field, M.E.; Stock, J.D.; Jupiter, S.D.; McCulloch, M.
Coral Ba/Ca records of sediment input to the fringing reef of the southshore of Moloka'i, Hawai'i over the last several decades; 2010; Article; Journal; Marine Pollution Bulletin; Prouty, N. G.; Field, M. E.; Stock, J. D.; Jupiter, S. D.; McCulloch, M.

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Year Published: 2009

A Multitracer Approach to Detecting Wastewater Plumes from Municipal Injection Wells in Nearshore Marine Waters at Kihei and Lahaina, Maui, Hawaii

Municipal wastewater plumes discharging from aquifer to ocean were detected by nearshore wading surveys at Kihei and Lahaina, on the island of Maui in Hawaii. Developed in cooperation with the Hawaii State Department of Health, the survey methodology included instrument trolling to detect submarine groundwater discharge, followed by analysis of...

Hunt, Charles D.; Rosa, Sarah N.
A Multitracer Approach to Detecting Wastewater Plumes from Municipal Injection Wells in Nearshore Marine Waters at Kihei and Lahaina, Maui, Hawaii; 2009; SIR; 2009-5253; Hunt, Charles D. Jr.; Rosa, Sarah N.

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Year Published: 2009

Reconnaissance Assessment of the Potential for Roadside Dry Wells to Affect Water Quality on the Island of Hawai'i

The County of Hawai'i Department of Public Works (DPW) uses dry wells to dispose of stormwater runoff from roads. Recently, concern has been raised that water entering the dry wells may transport contaminants to groundwater and affect the quality of receiving waters. The DPW operates 2,052 dry wells. Compiling an inventory of these dry wells and...

Izuka, Scot K.; Senter, Craig A.; Johnson, Adam G.
Reconnaissance Assessment of the Potential for Roadside Dry Wells to Affect Water Quality on the Island of Hawai'i; 2009; SIR; 2009-5249; Izuka, Scot K.; Senter, Craig A.; Johnson, Adam G.

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Year Published: 2009

Ecological Assessment of Wadeable Streams on O`ahu, Hawai'i, 2006-2007: A Pilot Study

In 2006-07, the U.S. Geological Survey (USGS) Pacific Islands Water Science Center (PIWSC), in cooperation with the Hawai'i Department of Health (HDOH), conducted a pilot study as a participant in the U.S. Environmental Protection Agency's (USEPA) Wadeable Streams Assessment (WSA) program. Forty randomly selected sites on perennial streams on O'...

Wolff, Reuben H.; Koch, Linda A.
Ecological Assessment of Wadeable Streams on O`ahu, Hawai'i, 2006-2007: A Pilot Study; 2009; SIR; 2009-5229; Wolff, Reuben H.; Koch, Linda A.

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Year Published: 2009

Rainfall, Discharge, and Water-Quality Data During Stormwater Monitoring, July 1, 2008, to June 30, 2009 - Halawa Stream Drainage Basin and the H-1 Storm Drain, Oahu, Hawaii

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. The program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream, and to assess the effects from the H-1 storm drain on Manoa Stream. For this program, rainfall data were...

Presley, Todd K.; Jamison, Marcael T.J.
Rainfall, Discharge, and Water-Quality Data During Stormwater Monitoring, July 1, 2008, to June 30, 2009 - Halawa Stream Drainage Basin and the H-1 Storm Drain, Oahu, Hawaii; 2009; OFR; 2009-1162; Presley, Todd K.; Jamison, Marcael T. J.

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Year Published: 2009

An integrated approach to benthic habitat mapping using remote sensing and GIS: An example from the Hawaiian Islands

This chapter documents our effort to map benthic habitats within the KalokoHonokohau National Historic Park, Hawai`i, USA. We produce detailed benthichabitat maps by using a combination of color aerial photography, high-resolution bathymetry, and georeferenced underwater video and still photography. We classify individual habitat polygons using...

Yang, X.; Gibbs, A.E.; Cochran, Susan A.

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Year Published: 2008

Suspended-sediment and nutrient loads for Waiakea and Alenaio Streams, Hilo, Hawaii, 2003-2006

Suspended sediment and nutrient samples were collected during wet-weather conditions at three sites on two ephemeral streams in the vicinity of Hilo, Hawaii during March 2004 to March 2006. Two sites were sampled on Waiakea Stream at 80- and 860-foot altitudes during March 2004 to August 2005. One site was sampled on Alenaio Stream at 10-foot...

Presley, Todd K.; Jamison, Marcael T.J.; Nishimoto, Dale C.
Suspended-sediment and nutrient loads for Waiakea and Alenaio Streams, Hilo, Hawaii, 2003-2006; 2008; OFR; 2007-1429; Presley, Todd K.; Jamison, Marcael T. J.; Nishimoto, Dale C.

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Year Published: 2008

Ground Water on Tropical Pacific Islands - Understanding a Vital Resource

To a casual observer, tropical Pacific islands seem idyllic. Closer scrutiny reveals that their generally small size makes them particularly vulnerable to economic and environmental stresses imposed by rapidly growing populations, increasing economic development, and global climate change. On these islands, freshwater is one of the most precious...

Tribble, Gordon
Ground Water on Tropical Pacific Islands - Understanding a Vital Resource; 2008; CIR; 1312; Tribble, Gordon

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Year Published: 2008

Ground-Water Availability in the Wailuku Area, Maui, Hawai'i

Most of the public water supply in Maui, Hawai'i, is from a freshwater lens in the Wailuku area of the island. Because of population growth, ground-water withdrawals from wells in this area increased from less than 10 Mgal/d during 1970 to about 23 Mgal/d during 2006. In response to increased withdrawals from the freshwater lens in the Wailuku...

Gingerich, Stephen B.
Ground-Water Availability in the Wailuku Area, Maui, Hawai'i; 2008; SIR; 2008-5236; Gingerich, Stephen B.

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Year Published: 2008

The Significance of Accounting Order for Evapotranspiration and Recharge in Monthly and Daily Threshold-Type Water Budgets

Most threshold-type water-budget models account for the loss of water by evapotranspiration before accounting for recharge. Recharge estimates can differ substantially, depending on whether recharge is counted before or after evapotranspiration in the water budget. This disparity is the source of uncertainty and is most pronounced for areas where...

Oki, Delwyn S.
The Significance of Accounting Order for Evapotranspiration and Recharge in Monthly and Daily Threshold-Type Water Budgets; 2008; SIR; 2008-5163; Oki, Delwyn S.

Filter Total Items: 1,576
Coqui frog on red ti plant leaf
April 1, 2019

Coqui frog on a red ti plant leaf

A coqui frog rests on a red ti plant leaf. Native to Puerto Rico, coqui are an invasive species in Hawaii.

GPS station on Mauna Loa
March 27, 2019

GPS survey is completed annually on Mauna Loa

A high-precision Global Positioning System (GPS) survey is completed annually on Mauna Loa. This station was occupied for a period of three days to supplement the continuously operating GPS stations on the volcano. A beautiful view of Mauna Kea (in distance) could seen from this site during the GPS survey. 

 small amounts of sulfur dioxide
March 22, 2019

small amounts of sulfur dioxide

Only small amounts of sulfur dioxide (SO2) and hydrogen sulfide (H2S) are currently being released from Kīlauea, but they chemically react with each other (oxidation-reduction reaction) to form the bright yellow sulfur deposits visible on the crater walls within Halema‘uma‘u. The current low sulfur emission rates at Kīlauea have contributed to

...
March 19, 2019

3D Model of Pu`u `Ō`ō

This 3D model of the Pu‘u ‘Ō‘ō crater was constructed from thermal images taken during a recent helicopter overflight. White areas show warm spots in the crater. Despite the absence of active lava in Pu‘u ‘Ō‘ō, changes at the crater have continued since magma drained from beneath it on April 30, 2018. The shape of the crater continues to change through occasional small

March 18, 2019

Rockfalls continue to change the shape of Pu‘u ‘Ō‘ō crater

This video was taken during an overflight of the Pu‘u ‘Ō‘ō crater on Kīlauea Volcano's middle East Rift Zone. No major changes were observed, but the shape of the crater continues to be altered by continued rockfalls.

test flight of an unmanned aerial system
February 20, 2019

test flight of an unmanned aerial system

A USGS pilot and Hawaiian Volcano Observatory gas geochemist prepare to conduct a test flight of an unmanned aerial system (UAS) on Kīlauea Volcano in November 2018. This UAS was outfitted with a prototype miniaturized multi-gas sensor for the detection of volcanic gases emitted by Kīlauea, including sulfur dioxide and carbon dioxide.

Explosive eruption columns of ash rising
December 31, 2018

Explosive eruption columns of ash rising

Explosive eruption columns of ash rising from Halema‘uma‘u at 11:15 a.m. on May 18, 1924 (top) and at 11:05 a.m. on May 15, 2018 (bottom) look similar. Researchers are re-evaluating early assumptions about the role groundwater played in triggering these explosive eruptions at the summit of Kīlauea Volcano and are now looking at the build-up of gases from retreating magma

...
Map of selected earthquakes beneath a portion of southeast Hawaii
December 31, 2018

Map of selected earthquakes beneath a portion of southeast Hawaii

Map of selected earthquakes beneath a portion of southeast Hawai`i from May 4, 2018 to March 14, 2019, showing principally aftershocks following May 4, 2018 M6.9 earthquake. Black dots indicate epicenters of 13,083 earthquakes located during this time interval; yellow stars show locations of the M6.9 earthquake and the March 13, 2019 M5.5 earthquake.

Lava flow thickness 2018
December 31, 2018

Lava flow thickness 2018

This preliminary thickness map of Kīlauea Volcano's 2018 lower East Rift Zone lava flows was calculated by subtracting pre-eruption ground surface elevations from post-eruption ground surface elevations mapped with USGS Unmanned Aerial System (drone) flights. The drones acquired 2,800 aerial photos from which 1.5 billion common points were automatically selected by Surface

...
Image of wind turbine towering over trees
December 31, 2018

Wind turbine towering over trees

A wind turbine rising above Oʻahu trees forms part of a wind energy installation where USGS bat research is taking place.

Equipment set up on the ground below a wind turbine.
December 31, 2018

Equipment set up at wind energy site

Bat detection and monitoring equipment set up below a turbine at an Oʻahu, Hawaiʻi wind energy site.

Wind turbines and trees against sky at sunset.
December 31, 2018

Windmills at sunset, Oʻahu

Turbines at a wind energy site on Oʻahu, Hawaiʻi.

Filter Total Items: 1,978
USGS
March 27, 2019

On March 26, 2019, in response to reduced activity on the volcano, HVO lowered the Volcano Alert Level for Kīlauea's ground-based hazards from ADVISORY to NORMAL.

USGS
March 26, 2019

Kīlauea's Southwest Rift Zone was more volcanically active in the late 18th- to early 19th-centurys than previously assumed.

UAS mission documents conditions at the Overlook vent...
March 26, 2019

The 2018 Kīlauea Volcano lower East Rift Zone eruption was the first time Unmanned Aircraft Systems (UAS) were used by the Federal Government to assist with an eruption response in the U.S. The UAS (drones) surveyed areas that were too hazardous for field crews or manned aircraft to access, collected multiple types of data, and provided 24/7 real-time situational awareness.

Explosive eruption columns of ash rising
March 22, 2019

In February 1924, the surface of the lava lake at Halema‘uma‘u dropped rapidly and disappeared from view. Throughout March and April, the crater floor subsided as magma moved out of the summit reservoir into the East Rift Zone. By May 6, 1924, the floor of Halema‘uma‘u had dropped more than 180 m (about 600 ft) below the crater rim. 

Map of selected earthquakes beneath a portion of southeast Hawaii
March 15, 2019

Early Wednesday morning, just before 1AM on March 13, houses in east Hawai`i began to shake. Without a doubt, it was an earthquake. To those who endured the near-daily shaking from last summer’s collapse events at Kīlauea’s summit, this week’s earthquake was clearly different.

USGS
March 13, 2019

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-5.5 earthquake located beneath Kīlauea Volcano's south flank on Wednesday, March 13, at 12:55 a.m., HST. 

Lava flow thickness 2018
March 7, 2019

Eruption rate (how much lava comes out of the ground per unit time) is probably the best measure of volcanic activity, and the first step in that calculation is to measure lava flow thickness and area. 

fissure 8 on Kīlauea
February 28, 2019

Since the end of the 2018 lower East Rift Zone (LERZ) eruption on Kīlauea Volcano, questions have surfaced concerning how long it will take for the new lava flows to solidify. This is a difficult question to answer, because the initial eruptive temperatures along with many different factors can influence the rate of cooling.

USGS
February 22, 2019

2018 Kīlauea lower East Rift Zone eruption and calderal collapse described in Science paper.

USGS
February 22, 2019

USGS Fact Sheet, written by HVO scientists, won the 2018 Shoemaker Award for Communications Product Excellence for the Small Print category.

USGS
February 22, 2019

Information about how to stay informed about Hawaiian volcanoes.

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